Ejecta is awesome. I remember helping out in the early days of it, fixing up some alpha and rotation bugs... it's a shame how badly intel's "accelerated" canvas performs on android. On the nexus 4, native canvas looks better and performs roughly the same.

I've been praying for something like Ejecta and CocoonJS that is both cross-platform and open source. I always imagined that the canvas API should translate rather easily to native graphics mode, but it is probably not that simple.

There is an effort to port ejecta to android, which a company I used to work for is now maintaining. That means accelerated canvas for the big two.

I thought I'd put more detail in. The project is called ejecta-x. http://wizcorp.github.io/Ejecta-X/